25
Figure 11. Leakage setting display in stand by
High Voltage Ramp Time
This procedure controls the amount of time used to ramp the high voltage to the required level.
The factory setting of two seconds is adequate for most situations. Use this procedure if
adjustment to a different ramp time within the range of 1 to 5 seconds is required.
1.
Defeat the
Ground Check
by turning the rear panel switch to the OFF position.
2.
Connect the HT-PR to a correctly rated source of supply and turn the power switch to the
I or ON position. Push the
RESET
button. The yellow
TEST
indicator should light,
indicating that the HT-PR is ready to test.
3.
Make sure there are no test leads connected to the HT-PR. Push the
TEST
button.
4.
When the
TEST
button is pressed, the voltage will ramp and hold. Adjust the
Ramp
Time
control on the rear panel (see figure 4) until the desired ramp time is reached. The
test can be terminated at any time by pressing the
RESET
button.
5.
If tamperproof settings are desired, the
Ramp Time
control shaft may be pulled away
with a slight tug. (It may be reinserted for future adjustments.)
6.
Check the position of the
Ground Check
switch before testing.
Ground Resistance
To modify the ground setting (refer to your device standard for more information) follow these
steps.
1.
On the rear panel turn the
Ground Resistance
potentiometer (see figure 4). As soon as
the potentiometer starts turning, the meter will start blinking, display “r” (See figure 12),
and the value can be set in 0.01
Ω
increments from 0.01 to 1.50
Ω
.
2.
If tamperproof settings are desired, the
Ground Resistance
control shaft may be pulled
away with a slight tug. (It may be reinserted for future adjustments).
Summary of Contents for HT-2000PR
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